Bluetooth phone keeps turning itself off/on

[Mark-E]

Newbie question.
Got a year old E 250cdi coupe BE (usual injector drama's) but OBE thing drives me nuts.

Have a pretty standard Nokia phone (6700) set up for Bluetooth in the car. Most of the time it works fine. However, randomly the Bluetooth just disconnects mid conversation and after a few moments it just reconnects.

As if the phone has "gone out of range of the car". Phone never misses a beat in other vehicles, just seems to be the coupe this occurs in.

MB have tested it a few times...nothing.

Just wondered if it's just me then !

 

[st13phil]

I had exactly the same problem with one firmware version on my Nokia E72 in my W204. It was resolved by updating the phone firmware.

 

[npuk]

As above update firmware and on the phone set MB Bluetooth to authorised so it can pair automatically without asking you to confirm.

 

[Mark-E]

Could not update firmware via t-mobile from the phone. It thought it was on latest firmware revision. Downloaded nokia ovi and manually installed latest one.
Not missed a beat since.
MANY thanks !

 

[st13phil]

Could not update firmware via t-mobile from the phone. It thought it was on latest firmware revision. Downloaded nokia ovi and manually installed latest one.
Not missed a beat since.
MANY thanks !

Glad to be of service!

As an aside, I hate the random compatibility issues that seem endemic with Bluetooth. That's the trouble with technology that doesn't have strong standards.